File: MachineSink-call.ll

package info (click to toggle)
llvm-toolchain-13 1%3A13.0.1-11
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,418,840 kB
  • sloc: cpp: 5,290,826; ansic: 996,570; asm: 544,593; python: 188,212; objc: 72,027; lisp: 30,291; f90: 25,395; sh: 24,898; javascript: 9,780; pascal: 9,398; perl: 7,484; ml: 5,432; awk: 3,523; makefile: 2,913; xml: 953; cs: 573; fortran: 539
file content (23 lines) | stat: -rw-r--r-- 611 bytes parent folder | download | duplicates (17) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
 
; RUN: llc < %s | FileCheck %s
target triple = "nvptx64-nvidia-cuda"

declare void @foo()

; Load a value, then call a function.  Branch, and use the loaded value only on
; one side of the branch.  The load shouldn't be sunk beneath the call, because
; the call may modify memory.
define i32 @f(i32 %x, i32* %ptr, i1 %cond) {
Start:
  ; CHECK: ld.u32
  %ptr_val = load i32, i32* %ptr
  ; CHECK: call.uni
  call void @foo()
  br i1 %cond, label %L1, label %L2
L1:
  %ptr_val2 = add i32 %ptr_val, 100
  br label %L2
L2:
  %v4 = phi i32 [ %x, %Start ], [ %ptr_val2, %L1 ]
  %v5 = add i32 %v4, 1000
  ret i32 %v5
}